Quote:
Originally Posted by Paul Huryk
Well, I checked out a 383 that Lingenfelter built and is in his book "JL builds SBC engines" and a similar setup put out 493hp at 6000rpm with a carb. Now your heads flow a little better and your cam is one step up, so I would think that if perfectly tuned it would be over 500hp.
Either you leave what you have (maybe change bearings, bolts, and oil pump) or you build it right with a solid bottom end - no reason to do things half way... And then have to do it again.
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I'd bet on a stripped down engine dyno this combination could do 520 horses with a good tune. I have a tendency to think crank horsepower as fully dressed through mufflers and full accessories like how new cars are rated. I don't doubt this is a 460-480 hp motor with that rating.